opts.optmulti("D", "", "deny certain clippy lints", "OPT");
opts.optmulti("W", "", "warn about certain clippy lints", "OPT");
opts.optmulti("F", "", "forbid certain clippy lints", "OPT");
opts.optmulti("D", "", "deny certain clippy lints", "OPT");
opts.optmulti("W", "", "warn about certain clippy lints", "OPT");
opts.optmulti("F", "", "forbid certain clippy lints", "OPT");